San Marcos River Foundation
- purpose: to ensure the continued flow of the San Marcos Springs, improve water quality and protect the natural beauty of the river through the establishment of parks and habitat restoration
- more info: Charity Navigator
Keep Austin Beautiful
- purpose: inspire and educate all Austinites to volunteer together, beautify green spaces, clean waterways, and reduce waste every day
- more info: Charity Navigator
Lady Bird Johnson Wildflower Center
- purpose: inspiring the conservation of native plants
- more info: Botanic Gardens Conservation International, Wikipedia
EarthShare Texas
- purpose: empowers mission-driven members to pursue positive environmental and health impacts across the Lone Star State for the benefit of all
- more info: Charity Navigator
Austin Youth River Watch
- purpose: transforms and inspires youth through environmental education, community engagement, and adventure
- more info: Charity Navigator
Texas Conservation Alliance
- purpose: protects and preserves wildlife and wild habitats for the future benefit of all Texans
- more info: Charity Navigator